This effect may cause adverse consequences in one group of individuals who commonly take loop diuretics: people with heart failure. The heart depends on B
1
for proper function; therefore, this finding suggests that taking a B
1
supplement may be advisable. In fact, preliminary evidence suggests that thiamin supplementation does indeed improve heart function in individuals with congestive heart failure (CHF).
6,7,11

Licorice, too, affects potassium, and the combination of licorice and loop diuretics might cause unexpectedly rapid potassium loss.
8
However, the special form of licorice known as DGL (deglycyrrhizinated licorice) should not affect potassium levels.

Loop diuretics have been reported to cause increased sensitivity to the sun, amplifying the risk of sunburn or skin rash. Because St. John's wort and dong quai may also cause this problem, taking these herbal supplements during treatment with loop diuretics might add to this risk.

It may be a good idea to wear a sunscreen or protective clothing during sun exposure if you take one of these herbs while using a loop diuretic.

Please be aware that this information is provided to supplement the care provided by your physician. It is neither intended nor implied to be a substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY.
Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with any questions you may have regarding a medical condition.

DISCLAIMER: This information is intended for educational purposes. EBSCO is in no way liable for the use of this information and makes no warranty or guarantee as to its accuracy.